$ sudo apt-get update
$ sudo apt-get install openjdk-8-jdk
$ sudo apt-get install openjdk-8-jre

sudo apt-get install git-core gnupg flex bison gperf build-essential zip curl \
zlib1g-dev gcc-multilib g++-multilib libc6-dev-i386 lib32ncurses5-dev \
x11proto-core-dev libx11-dev lib32z-dev ccache libgl1-mesa-dev libxml2-utils \
xsltproc unzip

$ git config --global user.name "Your Name"
$ git config --global user.email "[email protected]"

$ sudo apt-get install git-core
$ git clone https://github.com/akhilnarang/scripts
$ cd scripts
$ ls$ bash setup/<script-name>

# Create a directory for the source files
# You can name this directory however you want, just remember to replace
# WORKSPACE with your directory for the rest of this guide.
# This can be located anywhere (as long as the fs is case-sensitive)
$ mkdir WORKSPACE
$ cd WORKSPACE

# Install Repo in the created directory
# Use a real name/email combination, if you intend to submit patches
$ repo init -u https://github.com/RevengeOS/android_manifest -b r9.0

# Let Repo take care of all the hard work
#
# Tthe x on jx it's the amount of cores you have.
# 4 threads is a good number for most internet connections.
# You may need to adjust this value if you have a particularly slow connection.
$ repo sync -f --force-sync --no-clone-bundle -jx

# Go to the root of the source tree...
$ cd WORKSPACE
# ...and run the build commands.
$ . build/envsetup.sh
$ lunch
$ choose your device From the list
$ brunch device 
# For Eg Leeco Le max2 code name is x2 so brunch x2